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pcu_l1_if_phy: add new API call l1if_disconnect_pdch

Change-Id: I4cc72f032f0abdd5833cdd3b1fe68c69394d89a4
---
M src/pcu_l1_if.cpp
M src/pcu_l1_if_phy.h
2 files changed, 16 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-pcu refs/changes/38/31438/1

diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 2384600..346d449 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -920,6 +920,9 @@
 				if (pdch->is_enabled()) {
 					pcu_tx_act_req(bts, pdch, 0);
 					pdch->disable();
+					if (the_pcu->phy_ops && the_pcu->phy_ops->l1if_disconnect_pdch
+					    && (info_ind->flags & PCU_IF_FLAG_SYSMO))
+						the_pcu->phy_ops->l1if_disconnect_pdch(bts->trx[trx_nr].fl1h);
 				}
 			}
 		}
diff --git a/src/pcu_l1_if_phy.h b/src/pcu_l1_if_phy.h
index 4187fbd..02bc158 100644
--- a/src/pcu_l1_if_phy.h
+++ b/src/pcu_l1_if_phy.h
@@ -22,6 +22,10 @@
 			     uint8_t *data, uint8_t len);
 	int (*l1if_close_pdch)(void *obj);
 
+	/* Sompe PHYs require to disconnect the PDCH explicitly. This instructs the driver to release the resources
+	 * while keeping the context alive until the PDCH is connected again using l1if_connect_pdch(). */
+	int (*l1if_disconnect_pdch)(void *obj);
+
 	/* PHY initialization: This callback is called once in the early startup phase before the config file is
 	 * parsed. It is intended for preliminary initialization such as adding VTY confg options or calling library
 	 * initialization functions. The callback may be set to NULL in case no initialization is needed. */

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